require 'rvg/rvg'

Magick::RVG.dpi = 90

rvg = Magick::RVG.new(12.cm, 5.25.cm).viewbox(0, 0, 1200, 400) do |canvas|
  canvas.title = 'Example arcs01 - arc commands in path data'
  canvas.desc = <<-END_DESC
        Picture of a pie chart with two pie wedges and a picture
        of a line with arc blips
  END_DESC
  canvas.background_fill = 'white'
  canvas.rect(1196, 395, 1, 1).styles(fill: 'none', stroke: 'blue', stroke_width: 1)

  canvas.path('M300,200 h-150 a150,150 0 1,0 150,-150 z')
        .styles(fill: 'red', stroke: 'blue', stroke_width: 5)
  canvas.path('M275,175 v-150 a150,150 0 0,0 -150,150 z')
        .styles(fill: 'yellow', stroke: 'blue', stroke_width: 5)
  canvas.path(<<-END_PATH)
           M600,350 l 50,-25
           a25,25 -30 0,1 50,-25 l 50,-25
           a25,50 -30 0,1 50,-25 l 50,-25
           a25,75 -30 0,1 50,-25 l 50,-25
           a25,100 -30 0,1 50,-25 l 50,-25
  END_PATH
        .styles(fill: 'none', stroke: 'red', stroke_width: 5)
end

rvg.draw.write('arcs01.gif')
